Chapter 3. Operation
3-6
VCOM Module User Manual
61200312L1-1
A
VAILABLE
This resource is available for use as a voice compression resource.
B
USY
This resource is currently being used as a voice compression resource.
T
ESTING
This resource is currently being tested and is not available for use.
F
AILED
This resource has failed testing and is not available for use.
A
LGORITHM
Read Security: 5
Denotes the voice compression algorithm being used by the VoFR device.
Any VoFR device can use any available compression algorithm. When
ATLAS 550 chooses a VoFR device for a particular call, the voice compres-
sion algorithm is set to match the dial plan endpoint configuration. Refer to
the Frame Relay section of the ATLAS 550 User Manual for more informa-
tion.
N/A
Not available. This device has not been assigned a voice compression algo-
rithm.
G.723.1
CCITT G.723.1 compression; 6.3 kbps bandwidth.
N
ETCODER
ADTRAN-proprietary NETCODER compression; 6.4 kbps bandwidth.
S
ILENCE
Read Security: 5
Reduces total system bandwidth load.
Voice endpoints continue to originate frame relay traffic during periods of
relative silence. The VCOM Module expects to receive such silence frames;
therefore, silence compression is
D
ISABLED
by default. Some voice end-
points can be configured so that no silence frames are transmitted during
periods of relative silence. For compatibility with these devices, the
VCOM Module can be configured to expect that silence suppression is
E
NABLED
; thus, no frame relay traffic is generated during periods of silence.
Both voice endpoints must agree on the silence suppression setting. Refer to
the ATLAS 550 User Manual for more information.
C
ONNECTION
Read Security: 5
Helps identify a suspect VoFR device if a particular call reports poor qual-
ity. The displayed packet identifier and the dial plan endpoint identify the
call using this VoFR device.
Some voice compression standards are proprietary and may be
used only under specific licensing arrangements. The ATLAS 550
provides complete management of these licensed resources;
therefore, users are not required to take additional steps to ensure
conformance with licensing provisions. For example, the ATLAS
550 manages its resources so users never exceed the maximum
licensed number of simultaneous connections. Refer to the Frame
Relay section of the ATLAS 550 User Manual for details.
